How a bitcoin-backed loan works: LTV, rates and liquidation risk

analysis⚖️ Neutral$BTC

⏱ 3 min read

Institutional activity now includes a rated securitization, while Q2 2026 loan volumes totaled $56.16 billion, the report says.


A bitcoin-backed loan lets a BTC holder borrow fiat or a stablecoin against deposited collateral; industry loan-to-value (LTV) ratios run about 30% to 70%, and many lenders start near 50%, the report says. While a loan is open, the BTC stays locked and is returned when principal and interest are repaid.

If BTC’s price falls, the LTV rises. Lenders set triggers: a margin call asks the borrower to add collateral or pay down the balance, and if the LTV keeps rising the lender liquidates collateral to cover the debt. In DeFi, smart contracts execute margining and liquidation automatically.

Mechanics, terms and costs

Terms vary by provider, according to the report. Some products use fixed 12‑month terms with monthly interest, while others, such as Coinbase’s loans, have no monthly payments and no repayment deadline, with interest accruing to the balance. Centralized lenders require identity checks and typically hold or custodian the BTC. DeFi loans are handled by smart contracts and often require wrapped BTC.

Costs differ widely and shift with conditions. As of October 2026, the report lists published rates starting around 5.8% at Coinbase. SALT advertises 7.49% to 10.5% APR, Ledn ranges from 11.49% APR below $250,000 down to 9.25% for loans of $2 million or more, Strike charges 10.5% to 13% APR with a higher rate if interest is paid at maturity, and Unchained quotes 12% interest or 14.18% APR. DeFi rates float with supply and demand. Fees and penalties can lift the effective cost above the headline rate.

The main appeal, the report notes, is accessing cash while keeping BTC exposure. In many jurisdictions borrowing is not a taxable event, though selling BTC is; borrowers should check local rules. Lenders now emphasize no rehypothecation and, in some cases, collaborative custody. The report cites Unchained’s 2‑of‑3 multisig vaults where the borrower, Unchained and an independent key agent each hold one key.

$BTC
▲ 1.72%
$84,440

Prices as of 2026-10-21 23:02 UTC. Source: CoinGecko.

Institutions, regulation and risks

Institutional packaging has arrived. In February 2026, Ledn closed a $188 million Bitcoin‑backed asset‑backed securitization; S&P Global assigned its $160 million senior class a preliminary “BBB-” rating, which SVB described as the first investment‑grade rating for a Bitcoin‑collateralized lending portfolio. The $160 million senior piece against $188 million total leaves $28 million across subordinated tranches by simple arithmetic.

Market data points to a sizeable but shifting book. Galaxy Research put total crypto‑backed loan volume at $56.16 billion in Q2 2026, down 16.8% from the prior quarter, and said centralized lenders now hold more loans than DeFi protocols. Coinbase has passed $1 billion in bitcoin‑backed loan originations, according to the company.

Policy is evolving, the report says. Regulation is clearer after the GENIUS Act passed in the U.S., while the broader CLARITY Act stalled in the Senate in September 2026. SVB noted that several major financial institutions launched bitcoin‑backed lending for select clients in the first half of 2026.

Risk remains concentrated in BTC’s volatility. The report stresses that sharp price drops can push overextended borrowers into liquidation. DeFi adds operational hazards: in April 2026, after attackers drained $291 million from infrastructure linked to the Kelp DAO project, users of lending protocol Aave struggled to withdraw as $6.2 billion flowed out. The flow data shows stress and outflows; it does not identify which users sold or why.

For would‑be borrowers, the determinant is the LTV path. Product choice, custody model, rates and fees matter, but liquidation thresholds ultimately govern whether the BTC stays locked or is sold.


Source: Decrypt.
This article was written with AI assistance and reviewed by an editor.
This content is for informational purposes only and does not constitute financial advice.

🧠 HafidWatch Take

With the senior tranche making up about 85% of Ledn’s securitization, the remaining subordinated tranches must absorb most losses if Bitcoin prices fall sharply. This leaves the overall structure vulnerable to large BTC downturns, as sudden liquidations could exceed the subordinated buffer. While market growth and regulatory clarity support expansion, the resilience of these tranches in severe stress scenarios remains uncertain and will be critical for assessing the true risk exposure of institutional bitcoin-backed lending portfolios.

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